mirror of https://gitee.com/openkylin/linux.git
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
|
|
* Copyright 2001 MontaVista Software Inc.
|
|
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
|
|
* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
|
|
*
|
|
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
|
|
* Author: Fuxin Zhang, zhangfx@lemote.com
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
|
|
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/types.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irq.h>
|
|
|
|
#include <asm/mips-boards/bonito64.h>
|
|
|
|
|
|
static inline void bonito_irq_enable(unsigned int irq)
|
|
{
|
|
BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
|
|
mmiowb();
|
|
}
|
|
|
|
static inline void bonito_irq_disable(unsigned int irq)
|
|
{
|
|
BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
|
|
mmiowb();
|
|
}
|
|
|
|
static struct irq_chip bonito_irq_type = {
|
|
.name = "bonito_irq",
|
|
.ack = bonito_irq_disable,
|
|
.mask = bonito_irq_disable,
|
|
.mask_ack = bonito_irq_disable,
|
|
.unmask = bonito_irq_enable,
|
|
};
|
|
|
|
static struct irqaction dma_timeout_irqaction = {
|
|
.handler = no_action,
|
|
.name = "dma_timeout",
|
|
};
|
|
|
|
void bonito_irq_init(void)
|
|
{
|
|
u32 i;
|
|
|
|
for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) {
|
|
set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
|
|
}
|
|
|
|
setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
|
|
}
|